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Looije, R. (2006) iCat for you. Master's Thesis / Essay, Artificial Intelligence.

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The world population is getting older and more and more people suffer from a chronic disease, such as diabetes. The need for medical (self-)care therefore increases, and a personal assistant could help. A personal assistant can have many different appearances. E.g. it can be a computer or a robot. When it is a computer, the assistance can be given in text, in speech or both, and by a standard chat application or a virtual agent. This thesis gives guidelines for supporting self-care and shows how it could be incorporated in a (embodied) personal assistant. First guidelines were derived from motivational interviewing, persuasive technology, and from existing guidelines for personal assistants. Two guidelines were found, be empathetic and be trustworthy. The first guideline is derived from Motivational Interviewing and can be reached by having ten skills. We only implemented three skills at most in the personal assistants due to time and technical constraints. The skills were implemented in a text interface, a virtual agent, and an embodied agent taking into account the technical constraints of the different assistants. The hypotheses were that the guidelines could be better incorporated in an agent than in a text interface, and that an embodied and social agent would incorporate the guidelines better than respectively a virtual and non social agent. Two experiments (N=6 and N=24) were done in a Wizard of Oz setting. In both experiments the participants worked with a text interface based assistant, a socially intelligent agent, and a non-socially intelligent agent. There were two groups in the experiments, the participants that worked with the virtual agent and the participants that worked with the embodied agent. The hypotheses were tested with questionnaires and by scoring video data on the social behavior of the participants towards the personal assistants. The first experiment proved that it is possible to have the same conversation with a robot as with a text interface. The second experiment showed that a text interface based personal assistant is just as trustworthy as an agent, but less empathetic. The socially intelligent virtual agent proved to incorporate the guidelines best and the non-socially intelligent embodied agent proved to incorporate the guidelines worst. These first experiments were performed with non diabetics, in the future we would like to perform an experiment with elderly that have diabetes.

Item Type: Thesis (Master's Thesis / Essay)
Degree programme: Artificial Intelligence
Thesis type: Master's Thesis / Essay
Language: English
Date Deposited: 15 Feb 2018 07:30
Last Modified: 15 Feb 2018 07:30

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